2 Ответов

Apple has used so many different CPU's in their systems I doubt anyone has a listing what works in which logic board. A better way to do this is to get down to your CPU in your system and make note of the part numbers, then go to Intel's web site and look it up. Once you know the CPU series you can select a different chip within it.

No, I understood your focus is the chips TDP value. You still need to work it out the way I explained here. Locate your exact systems CPU in Intels' lists it will tell you the TDP of what you have now and within this series the other chips that can be used that meet the TDP value window (+/-) the system was designed to support.

Snappaz, I think you are mixing things up a bit. TDP is not the same as power usage. It is the measure of heat dissipation in terms of wattage. "maximum amount of power the cooling system in a computer is required to dissipate"

The i7 870 has TDP of 95W but thats irrelevant the power consumption is of 121W and the 21.5 imac doesn't have the juice for that.

But ! the i7 870S (wich is the low-power variant) has the TDP of 82W and squeezes 66.63W from the power source. Bingo ! We have a winner.

I can confirm it works, i have the 21.5 mid-2010 imac with the i3 550 (dual core) now housing the quad i7 870S (2.66GHz turbo boost up to 3.6GHz, 8MB L3 cache). 4K video was a no go with i3 now plays smooth on i7, everything is blazing fast and I haven't even upgraded to SSD yet. the only thing I did notice is that in System Report I had 5.86GT/s Processor Interconnect Speed now its 4.8GT/s.

Did a lap on cpu before mounting in socket, reports 41 degrees Celsius on all cores never went past 60 in full load. The i3 had 44-46 on average use and difference of 1-1.5 degrees between cores.

Intel had long since stopped making them. You'll need to get the Intel part number from the link I posted above, then see what you can find on the internet. You might also want to try some of the Apple dedicated parts houses.